16.32 problem 33

Internal problem ID [13192]

Book: DIFFERENTIAL EQUATIONS by Paul Blanchard, Robert L. Devaney, Glen R. Hall. 4th edition. Brooks/Cole. Boston, USA. 2012
Section: Chapter 4. Forcing and Resonance. Section 4.1 page 399
Problem number: 33.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _missing_y]]

\[ \boxed {y^{\prime \prime }+4 y^{\prime }=3 t +2} \] With initial conditions \begin {align*} [y \left (0\right ) = 0, y^{\prime }\left (0\right ) = 0] \end {align*}

Solution by Maple

Time used: 0.016 (sec). Leaf size: 20

dsolve([diff(y(t),t$2)+4*diff(y(t),t)=3*t+2,y(0) = 0, D(y)(0) = 0],y(t), singsol=all)
 

\[ y \left (t \right ) = \frac {3 t^{2}}{8}+\frac {5 \,{\mathrm e}^{-4 t}}{64}+\frac {5 t}{16}-\frac {5}{64} \]

Solution by Mathematica

Time used: 0.136 (sec). Leaf size: 26

DSolve[{y''[t]+4*y'[t]==3*t+2,{y[0]==0,y'[0]==0}},y[t],t,IncludeSingularSolutions -> True]
 

\[ y(t)\to \frac {1}{64} \left (24 t^2+20 t+5 e^{-4 t}-5\right ) \]